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Introducing

OSTO®

The carbon negative lightweight aggregate for carbon zero blockwork.

osto low carbon aggregate in a form of grey granules

Key Information

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    Application: for use in concrete masonry units

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    Particle size: 0 - 6 mm

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    Colour: white/yellow

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    Shape: angular/cylindrical

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    Bulk density: 550 kg/m3

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    Specific density: 1150 kg/m3

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    Lower thermal conductivity

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    Carbon negative

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osto low carbon aggregate in a form of grey granules with an aggregate concrete block standing nearby
osto low carbon aggregate in a form of grey granules with an aggregate concrete block standing nearby

Blocks made with OSTO®

A sample block specification you can achieve using OSTO®.

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    A carbon zero aggregate concrete block

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    Compressional strength of >7.3N/mm2

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    Low thermal conductivity

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    Density of 1450 kg/m3

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    Will conform to BS EN 771-3

aggregate concrete block with sphera logo

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Frequently asked questions

What’s OSTO® made from?
How can I use it?
Where can I buy OSTO®?
Why should I use OSTO®?
What material does OSTO® replace?

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Email:

contact@lowcarbonmaterials.com

sem image of the sphera low carbon aggregate
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LCM is an Earthshot Prize Finalist in the 'Fix Our Climate' category! Earthshot Prize is the world’s most prestigious environmental prize, established in 2020 by HRH Prince William and The Royal Foundation.

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